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Home >> Jeep >> 1985 >> Cherokee Base, 4D Utility, 2.1 B, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - V6 >> Testing >> Engine Compression
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Engine Compression

Disconnect 2-wire connector at ignition coil. With air cleaner removed and throttle and choke wide open, crank engine through at least 4 compression strokes.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.5:1
Compression Pressure Min. of 100 psi (7.0 kg/cm2 )
Maximum Pressure Variation 30%